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Algorithm to detect intersection of two rectangles?
...lace the second rectangle rotated 45 degrees to the first rectangle and offset along the diagonal so that it fulfills the above intersection tests but doesn't intersect.
– Skizz
Sep 22 '08 at 21:22
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How can I remove a trailing newline?
What is the Python equivalent of Perl's chomp function, which removes the last character of a string if it is a newline?
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HashSet vs. List performance
It's clear that a search performance of the generic HashSet<T> class is higher than of the generic List<T> class. Just compare the hash-based key with the linear approach in the List<T> class.
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PHP best way to MD5 multi-dimensional array?
What is the best way to generate an MD5 (or any other hash) of a multi-dimensional array?
13 Answers
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How to find foreign key dependencies in SQL Server?
How can I find all of the foreign key dependencies on a particular column?
13 Answers
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Reverting part of a commit with git
...n $bad_commit # Revert the commit, but don't commit the changes
$ git reset HEAD . # Unstage the changes
$ git add --patch . # Add whatever changes you want
$ git commit # Commit those changes
Note: The files you add using git add --patch are the files y...
How to draw a line in android
... {
Paint paint = new Paint();
private void init() {
paint.setColor(Color.BLACK);
}
public DrawView(Context context) {
super(context);
init();
}
public DrawView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
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How to read lines of a file in Ruby
I was trying to use the following code to read lines from a file. But when reading a file , the contents are all in one line:
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How do I get the row count of a pandas DataFrame?
...np
import pandas as pd
import perfplot
perfplot.save(
"out.png",
setup=lambda n: pd.DataFrame(np.arange(n * 3).reshape(n, 3)),
n_range=[2**k for k in range(25)],
kernels=[
lambda data: data.shape[0],
lambda data: data[0].count(),
lambda data: len(data.index)...
How to sum a variable by group
...ow to summarise data by group using dplyr functions using the built-in dataset mtcars:
# several summary columns with arbitrary names
mtcars %>%
group_by(cyl, gear) %>% # multiple group columns
summarise(max_hp = max(hp), mean_mpg = mean(mpg)) # multiple summa...